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Finding the Fourth Proportional to 349,391.04, 482,105.64 and 196,400.88

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Solution

The fourth proportional to 349,391.04, 482,105.64 and 196,400.88 is: 271,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,391.04 : 482,105.64 = 196,400.88 : x
  2. Step 2: Convert to fraction form
    349,391.04/482,105.64 = 196,400.88/x
  3. Step 3: Cross multiply
    349,391.04x = 482,105.64 × 196,400.88
  4. Step 4: Simplify right side
    349,391.04x = 94,685,971,948.96
  5. Step 5: Solve for x
    x = 94,685,971,948.96/349,391.04
  6. Step 6: Final answer
    x = 271,002.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.